CN207906350U - A kind of coil external MR damper with parallel liquid flowing channel structure - Google Patents
A kind of coil external MR damper with parallel liquid flowing channel structure Download PDFInfo
- Publication number
- CN207906350U CN207906350U CN201820121241.5U CN201820121241U CN207906350U CN 207906350 U CN207906350 U CN 207906350U CN 201820121241 U CN201820121241 U CN 201820121241U CN 207906350 U CN207906350 U CN 207906350U
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- damper
- damper cylinder
- end cap
- right end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Vibration Prevention Devices (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a kind of coil external MR dampers with parallel liquid flowing channel structure, are mainly made of attenuator end cap, damper cylinder body, magnet exciting coil, piston head, floating piston, spring and lifting lug etc..Ring gap between damper cylinder body I and damper cylinder body II constitutes the first fluid course；Ring gap between damper cylinder body II and damper cylinder body III constitutes the second fluid course；Ring gap between damper cylinder body III and damper cylinder body IV constitutes third fluid course；Three fluid courses constitute parallel-connection type hydraulic circulation road by waist through hole, effectively extend damping clearance length, can get larger output damping force；Coil external structure avoids coil from being contacted with magnetorheological fluid, ensures that magnetorheological fluid is not influenced that performance is caused to decline by fever, while it is more convenient to repair replacement.The utility model damper performance is stablized, and output damping force is big, especially suitable for various mechanical vibration damping fields.
Description
Technical field
The utility model is related to a kind of MR damper more particularly to a kind of lines with parallel liquid flowing channel structure
Enclose external magnetic rheological damper.
Background technology
Magnetorheological fluid is a kind of novel intelligent material, and magnetorheological fluid is in the flow-like outside plus under magnetic field conditions by flowing freely
State is changed into class solid-state, and conversion process is reversible rapidly.Various intelligent magneto-rheological devices, magnetic current variable resistance are can be made into using the property
It is outstanding to become industrial application because its is simple in structure, export damping force greatly, wide adjustable extent and continuous along inverse adjustable for Buddhist nun's device
Half active actuators part.Currently, MR damper is widely used to a variety of vibration damping fields, such as house bridge, automobile
Suspension and railway locomotive etc..
Traditional MR damper is all that magnet exciting coil is built in damper cylinder barrel, is directly connect with magnetorheological fluid
It touches.When damper works, magnet exciting coil will produce certain heat and be conducted to magnetorheological fluid, and magnetorheological fluid is affected by temperature viscosity
It reduces, to influence the performance of damper.Coil is contacted with magnetorheological fluid for a long time is easy to happen damage, and it is non-to repair replacement
Often trouble.Unicoil damper is widely used because simple in structure, but there is not big enough the limitation of output damping force.Commonly
The method for increasing output damping force is to extend effective damping gap, and at the same time the appearance and size of damper also becomes huge.
Invention content
In order to overcome the problems, such as that MR damper described in background technology has and meet actually making for MR damper
With requiring, the utility model provides a kind of coil external MR damper with parallel liquid flowing channel structure.The resistance
I outer surface of damper cylinder body of Buddhist nun's device is machined with annular groove, the annulus formed between damper cylinder body I and damper cylinder body II
Damping clearance constitutes the first fluid course；II outer surface of damper cylinder body is machined with annular groove, damper cylinder body II and damping
The annulus damping clearance formed between device cylinder body III constitutes the second fluid course；It is recessed that III outer surface of damper cylinder body is machined with annular
Slot, the annulus damping clearance formed between damper cylinder body III and damper cylinder body IV constitute third fluid course；Damper cylinder
Body I, damper cylinder body II and III left and right ends of damper cylinder body are processed there are four equally distributed kidney slot, make three liquid streams
Channel is connected to form parallel-connection type hydraulic circulation road.Damper cylinder body III winds two groups of magnet exciting coils, and three liquid are made under magnetic fields
9 sections of effective damping gaps are formed at circulation road.When magnet exciting coil I and magnet exciting coil II are passed through same direction current, in fluid course
Between the magnetic line of force at section damping clearance cancel out each other, damper exports a certain size damping force；When magnet exciting coil I and excitation wire
When circle II is passed through heterodrome, the magnetic line of force at fluid course interlude damping clearance is overlapped mutually, and damper exports one more
Big damping force；Parallel-connection type hydraulic circulation road increases effective damping gap length；External excitation coil structure make coil not with
Magnetorheological fluid contacts, and solves the problems, such as that magnet exciting coil operational heat influences magnetorheological fluid performance, while working as magnet exciting coil
More convenient replacement and repair when damage.Compared with traditional MR damper, the utility model MR damper is not
The output damping force and damping force adjustable extent of bigger can be provided in the case of increasing damper length, while being had higher steady
It is qualitative, it is more applicable for various vibration damping fields.
Technical solution includes used by the utility model solves its technical problem：Left lifting lug (1), piston rod (2), damping
Device left end cap (3), damper cylinder body II (5), damper cylinder body III (6), damper cylinder body IV (7), is lived at damper cylinder body I (4)
Chock plug (8), right lifting lug (9), damper right end cap (10), spring (11), floating piston (12), locking nut (13), excitation wire
Enclose I (14), magnet exciting coil II (15) and damper cylinder body V (16)；Left lifting lug (1) and piston rod (2) company of being threadably secured
It connects；Circular through hole, piston rod (2) and damper left end cap (3) circular through hole inner surface are machined among damper left end cap (3)
Clearance fit, and be sealed by a seal ring；Damper left end cap (3) and damper cylinder body I (4) clearance fit, and pass through
Sealing ring is sealed；Damper left end cap (3) is fixedly connected with damper cylinder body I (4) by screw；Damper cylinder body II
(5) circumferential inner surface is interference fitted with damper cylinder body I (4) circumferential outer surface, and passes through damper left end cap (3) and damper
The annular groove of right end cap (10) carries out axially position；Damper cylinder body I (4) circumferential outer surface is machined with annular groove, damping
The annulus damping clearance formed between device cylinder body I (4) and damper cylinder body II (5) constitutes the first fluid course (17)；Damper
Cylinder body III (6) circumferential inner surface is interference fitted with damper cylinder body II (5) circumferential outer surface, and passes through damper left end cap (3)
Axially position is carried out with the annular groove of damper right end cap (10)；Damper cylinder body II (5) circumferential outer surface is machined with annular
Groove, the annulus damping clearance formed between damper cylinder body II (5) and damper cylinder body III (6) constitute the second fluid course
(18)；Damper cylinder body IV (7) circumferential inner surface is interference fitted with damper cylinder body III (6) circumferential outer surface, and passes through damping
Device left end cap (3) and the annular groove of damper right end cap (10) carry out axially position；Damper cylinder body III (6) circumferential outer surface
It is machined with annular groove, the annulus damping clearance formed between damper cylinder body III (6) and damper cylinder body IV (7) constitutes third
Fluid course (19)；The left and right sides of damper cylinder body I (4), damper cylinder body II (5) and damper cylinder body III (6) adds
There are four equally distributed waist through hole for work, make the first fluid course (17), the second fluid course (18) and third fluid course
(19) connection constitutes parallel-connection type hydraulic circulation road；There are two winding slot, magnet exciting coils I for the processing of damper cylinder body IV (7) outer surface
(14) it is respectively wound around in two winding slots of damper cylinder body IV (7) with magnet exciting coil II (15)；Damper cylinder body V (16)
Circumferential inner surface is interference fitted with damper cylinder body IV (7) circumferential outer surface, and right by damper left end cap (3) and damper
The annular groove of end cap (10) carries out axially position；The lead of magnet exciting coil I (14) and magnet exciting coil II (15) passes through damper
Wire lead slot and damper cylinder body V (16) fairlead on cylinder body IV (7) are drawn；Piston head (8) circumferential inner surface and piston rod
(2) right end outer surface is interference fitted；Piston head (8) carries out axially position by the shoulder of piston rod (2), and passes through locking nut
(13) it is fastenedly connected；Piston head (8) circumferential outer surface and damper cylinder body I (4) circumferential inner surface clearance fit, and pass through sealing
Circle sealing；Floating piston (12) circumferential outer surface and damper cylinder body I (4) circumferential inner surface clearance fit, and pass through sealing ring
It is sealed；There are one circular counter bores for the processing of floating piston (12) right side；Spring (11) left end is round with floating piston (12)
Counterbore clearance fit；There are one circular counter bores for the processing of damper right end cap (10) left side；Spring (11) right end is right with damper
End cap (10) left side circular counter bore clearance fit；Damper right end cap (10) and damper cylinder body I (4) clearance fit, and lead to
Sealing ring is crossed to be sealed；Damper right end cap (10) is fixedly connected with damper cylinder body I (4) by screw；Damper right end
Lid (10) is threadably secured with right lifting lug (9) to be connect.
The utility model compared with the background art, has an advantageous effect in that：
(1) I outer surface of damper cylinder body of the utility model MR damper is machined with annular groove, damper cylinder
The annulus damping clearance formed between body I and damper cylinder body II constitutes the first fluid course；II outer surface of damper cylinder body adds
Work has annular groove, and it is logical that the annulus damping clearance formed between damper cylinder body II and damper cylinder body III constitutes the second liquid stream
Road；III outer surface of damper cylinder body is machined with annular groove, the annulus formed between damper cylinder body III and damper cylinder body IV
Damping clearance constitutes third fluid course；Damper cylinder body I, damper cylinder body II and III left and right ends of damper cylinder body process
There are four equally distributed kidney slots, and three fluid courses is made to be connected to form parallel-connection type hydraulic circulation road.Damper cylinder body III is wound
Two magnet exciting coils make to form 9 sections of effective damping gaps at three fluid courses under magnetic fields.When magnet exciting coil I and excitation
When coil II is passed through same direction current, the magnetic line of force of fluid course interlude damping clearance is cancelled out each other, and damper output is certain big
Small damping force；When magnet exciting coil I and magnet exciting coil II are passed through heterodrome, the magnetic force of fluid course interlude damping clearance
Line is overlapped mutually, and damper exports the damping force of a bigger；
(2) the parallel-connection type hydraulic circulation road of the utility model MR damper increases effective damping gap length；It is external
Formula excitation coil structure makes coil not contacted with magnetorheological fluid, and efficiently solving magnet exciting coil operational heat influences magnetorheological fluid
The problem of energy, while more convenient replacement and repair when magnet exciting coil damages.Compared with traditional MR damper, this reality
The output damping force of bigger can be provided in the case where not increasing damper length and damping force can with Novel magneto-rheological damper
Range is adjusted, while there is higher stability, is more applicable for various vibration damping fields.
Description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is the utility model damper cylinder body I, damper cylinder body II and the three-dimensional exploded perspective view of damper cylinder body III.
Fig. 3 is the utility model fluid course schematic diagram.
Magnetic line of force distribution schematic diagram when Fig. 4 is the utility model magnet exciting coil I and magnet exciting coil II leads to heterodrome.
Magnetic line of force distribution schematic diagram when Fig. 5 is the utility model magnet exciting coil I and magnet exciting coil II leads to same direction current.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples：
As shown in Figure 1, the utility model includes left lifting lug (1), piston rod (2), damper left end cap (3), damper cylinder
Body I (4), damper cylinder body II (5), damper cylinder body III (6), damper cylinder body IV (7), piston head (8), right lifting lug (9), resistance
Buddhist nun's device right end cap (10), spring (11), floating piston (12), locking nut (13), magnet exciting coil I (14), magnet exciting coil II
(15) and damper cylinder body V (16).
Fig. 2 is the utility model damper cylinder body I, damper cylinder body II and the three-dimensional exploded perspective view of damper cylinder body III.
Damper cylinder body I (4) outer surface is machined with annular groove, is formed between damper cylinder body I (4) and damper cylinder body II (5)
Annulus damping clearance constitutes the first fluid course；Damper cylinder body II (5) outer surface is machined with annular groove, damper cylinder body II
(5) the annulus damping clearance formed between damper cylinder body III (6) constitutes the second fluid course；Damper cylinder body III (6) is outside
Surface is machined with annular groove, and the annulus damping clearance formed between damper cylinder body III (6) and damper cylinder body IV (7) is constituted
Third fluid course；Damper cylinder body I (4), damper cylinder body II (5) and damper cylinder body III (6) left and right ends are machined with
Four equally distributed kidney slots make three fluid courses be connected to form parallel-connection type hydraulic circulation road.
Fig. 3 show the utility model fluid course schematic diagram.Between damper cylinder body I (4) and damper cylinder body II (5)
The annulus damping clearance of formation constitutes the first fluid course (17)；Shape between damper cylinder body II (5) and damper cylinder body III (6)
At annulus damping clearance constitute the second fluid course (18)；It is formed between damper cylinder body III (6) and damper cylinder body IV (7)
Annulus damping clearance constitute third fluid course (19)；Damper cylinder body I (4), damper cylinder body II (5) and damper cylinder
The left and right sides of body III (6) is processed there are four equally distributed waist through hole, keeps the first fluid course (17), the second liquid stream logical
Road (18) and third fluid course (19) connection constitute parallel-connection type hydraulic circulation road.
Magnetic line of force distribution schematic diagram when Fig. 4 is the utility model magnet exciting coil I and magnet exciting coil II leads to heterodrome.Resistance
Buddhist nun's device cylinder body I (4), damper cylinder body IV (7) and damper cylinder V (16) are No. 10 steel permeability magnetic materials, magnet exciting coil I (13)
And magnet exciting coil II (14) sequentially passes through damper cylinder body I (4), damper cylinder body IV because of the magnetic line of force that galvanomagnetic-effect generates
(7) and damper cylinder V (16) closed circuit, is formed.It is passed through heterodrome to magnet exciting coil I (13) and magnet exciting coil II (14),
The magnetic line of force is overlapped mutually at fluid course interlude damping clearance.
Magnetic line of force distribution schematic diagram when Fig. 5 is the utility model magnet exciting coil I and magnet exciting coil II leads to same direction current.It gives
Magnet exciting coil I (13) is passed through same direction current with magnet exciting coil II (14), and the magnetic line of force is mutual at fluid course interlude damping clearance
It offsets.
Utility model works principle is as follows：
Moved back and forth when piston rod (2) is by external drive, magnetorheological fluid by three fluid courses in parallel come
Reflux is dynamic.When magnet exciting coil I (13) and magnet exciting coil II (14) are passed through electric current, magnetic force that magnet exciting coil is generated by galvanomagnetic-effect
Line is by and perpendicular to effective damping channel.It is passed through heterodrome to magnet exciting coil I (13) and magnet exciting coil II (14), liquid stream is logical
The magnetic line of force is overlapped mutually at road interlude damping clearance.It is passed through same direction current to magnet exciting coil I (13) and magnet exciting coil II (14),
The magnetic line of force is cancelled out each other at fluid course interlude damping clearance.Due to magnetic fields, flow through damp channel magnetorheological fluid its
Viscosity will increase, yield stress enhancing.Magnetorheological fluid flows through the damp channel, need to overcome the intermolecular of this catenation
Power, to increase the viscous damping force of MR damper.By adjusting size of current in magnet exciting coil, magnetorheological fluid can be changed
Yield stress, reach required output damping force.
Claims (1)
1. a kind of coil external MR damper with parallel liquid flowing channel structure, it is characterised in that：It is hung including a left side
Ear (1), piston rod (2), damper left end cap (3), damper cylinder body I (4), damper cylinder body II (5), damper cylinder body III
(6), damper cylinder body IV (7), piston head (8), right lifting lug (9), damper right end cap (10), spring (11), floating piston
(12), locking nut (13), magnet exciting coil I (14), magnet exciting coil II (15) and damper cylinder body V (16)；Left lifting lug (1)
It is threadably secured and connect with piston rod (2)；Circular through hole, piston rod (2) and damping are machined among damper left end cap (3)
Device left end cap (3) circular through hole internal surface gaps coordinate, and are sealed by a seal ring；Damper left end cap (3) and damping
Device cylinder body I (4) clearance fit, and be sealed by a seal ring；Damper left end cap (3) passes through spiral shell with damper cylinder body I (4)
Nail is fixedly connected；Damper cylinder body II (5) circumferential inner surface is interference fitted with damper cylinder body I (4) circumferential outer surface, and is passed through
Damper left end cap (3) and the annular groove of damper right end cap (10) carry out axially position；Outside damper cylinder body I (4) circumference
Surface is machined with annular groove, and the annulus damping clearance formed between damper cylinder body I (4) and damper cylinder body II (5) is constituted
First fluid course (17)；Damper cylinder body III (6) circumferential inner surface is matched with damper cylinder body II (5) circumferential outer surface interference
It closes, and axially position is carried out by the annular groove of damper left end cap (3) and damper right end cap (10)；Damper cylinder body II
(5) circumferential outer surface is machined with annular groove, the annulus resistance formed between damper cylinder body II (5) and damper cylinder body III (6)
Buddhist nun gap constitutes the second fluid course (18)；Damper cylinder body IV (7) circumferential inner surface and damper cylinder body III (6) circumferential outer surface
Face is interference fitted, and carries out axially position by the annular groove of damper left end cap (3) and damper right end cap (10)；Damping
Device cylinder body III (6) circumferential outer surface is machined with annular groove, is formed between damper cylinder body III (6) and damper cylinder body IV (7)
Annulus damping clearance constitute third fluid course (19)；Damper cylinder body I (4), damper cylinder body II (5) and damper cylinder
The left and right sides of body III (6) is processed there are four equally distributed waist through hole, keeps the first fluid course (17), the second liquid stream logical
Road (18) and third fluid course (19) connection constitute parallel-connection type hydraulic circulation road；Damper cylinder body IV (7) outer surface is machined with two
A winding slot, magnet exciting coil I (14) and magnet exciting coil II (15) are respectively wound around two winding slots of damper cylinder body IV (7)
It is interior；Damper cylinder body V (16) circumferential inner surface is interference fitted with damper cylinder body IV (7) circumferential outer surface, and passes through damper
Left end cap (3) and the annular groove of damper right end cap (10) carry out axially position；Magnet exciting coil I (14) and magnet exciting coil II
(15) lead is drawn by wire lead slot on damper cylinder body IV (7) and damper cylinder body V (16) fairlead；Piston head (8)
Circumferential inner surface is interference fitted with piston rod (2) right end outer surface；Piston head (8) is carried out axial by the shoulder of piston rod (2)
Positioning, and be fastenedly connected by locking nut (13)；Piston head (8) circumferential outer surface and damper cylinder body I (4) circumferential inner surface
Clearance fit, and be sealed by a seal ring；Floating piston (12) circumferential outer surface and table in damper cylinder body I (4) circumference
Face clearance fit, and be sealed by a seal ring；There are one circular counter bores for the processing of floating piston (12) right side；Spring (11)
Left end and floating piston (12) circular counter bore clearance fit；There are one circular counter bores for the processing of damper right end cap (10) left side；
Spring (11) right end and damper right end cap (10) left side circular counter bore clearance fit；Damper right end cap (10) and damper
Cylinder body I (4) clearance fit, and be sealed by a seal ring；Damper right end cap (10) passes through spiral shell with damper cylinder body I (4)
Nail is fixedly connected；Damper right end cap (10) is threadably secured with right lifting lug (9) and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820121241.5U CN207906350U (en) | 2018-01-24 | 2018-01-24 | A kind of coil external MR damper with parallel liquid flowing channel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820121241.5U CN207906350U (en) | 2018-01-24 | 2018-01-24 | A kind of coil external MR damper with parallel liquid flowing channel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207906350U true CN207906350U (en) | 2018-09-25 |
Family
ID=63564812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820121241.5U Expired - Fee Related CN207906350U (en) | 2018-01-24 | 2018-01-24 | A kind of coil external MR damper with parallel liquid flowing channel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207906350U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372940A (en) * | 2018-11-30 | 2019-02-22 | 重庆怡之驰机械有限公司 | The mounting bracket of gasoline engine |
| CN112628341A (en) * | 2020-12-14 | 2021-04-09 | 深圳先进技术研究院 | Magneto-rheological damper and vehicle |
-
2018
- 2018-01-24 CN CN201820121241.5U patent/CN207906350U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372940A (en) * | 2018-11-30 | 2019-02-22 | 重庆怡之驰机械有限公司 | The mounting bracket of gasoline engine |
| CN109372940B (en) * | 2018-11-30 | 2020-05-05 | 重庆怡之驰机械有限公司 | Mounting bracket for gasoline engine |
| CN112628341A (en) * | 2020-12-14 | 2021-04-09 | 深圳先进技术研究院 | Magneto-rheological damper and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108278320B (en) | A kind of big power output method of MR damper Combined-operating mode and damper | |
| CN208381187U (en) | A kind of parallel MR damper with multistage effective damping length | |
| CN104963986B (en) | A kind of MR damper with mixed flow dynamic formula fluid course | |
| CN108930753A (en) | A kind of twin coil MR damper with multistage axial liquid flow damping channel | |
| CN207848292U (en) | A kind of biliquid circulation road MR damper with concave groove piston rod | |
| CN105003589B (en) | A kind of built-in magnetorheological valve carries out the MR damper of damping capacity control | |
| CN206545666U (en) | The twin coil MR damper of effective damping gap length can be extended | |
| CN207906350U (en) | A kind of coil external MR damper with parallel liquid flowing channel structure | |
| CN205118104U (en) | Magneto rheological damper with radial flow and ring flow resistance buddhist nun passageway | |
| CN205118105U (en) | Magneto rheological damper with parallel flow channel | |
| CN208519105U (en) | A kind of double bar-type magneto-rheological dampers out extending damp channel length | |
| CN207795958U (en) | A kind of MR damper of integrated self-cooling set | |
| CN108302152B (en) | Magnetorheological damper with complex liquid flow channel structure | |
| CN212672298U (en) | Magnetorheological damper with full liquid flow channel structure | |
| CN206145049U (en) | Damper system is controlled to asymmetric magnetorheological valve | |
| CN206468738U (en) | Using the two-channel magnetorheological damper in double acting magnetic field | |
| CN205315604U (en) | Built -in magnetic current becomes magnetic current change attenuator that valve carries out control of damping performance | |
| CN208519104U (en) | A kind of double bar-type magneto-rheological dampers out of twin coil with parallel-connection type hydraulic circulation road | |
| CN206539641U (en) | The MR damper of mixing control is carried out using permanent magnet and twin coil | |
| CN108506376A (en) | A kind of New Rotary magnetic rheological brake | |
| CN207750432U (en) | A kind of two-wire ring MR damper of external cooling device | |
| CN206802174U (en) | Vehicle suspension Novel magneto-rheological damper with bypass fluid course | |
| CN209762121U (en) | Novel full-channel winding type magnetorheological damper | |
| CN208331046U (en) | A kind of New Rotary magnetic rheological brake | |
| CN208619582U (en) | Using the MR damper with zigzag fluid course of double magnetic fields |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 Termination date: 20220124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |